blendPositions method
Blends weights worth of position deltas onto basePositions
(vertexCount * 3 floats), writing into out when given (must match
the base length) or a fresh list otherwise.
Implementation
Float32List blendPositions(
Float32List basePositions,
Float32List weights, {
Float32List? out,
}) => _blendAdditive(basePositions, weights, positionDeltas, out);